40025250 has 48 divisors (see below), whose sum is σ = 108234360. Its totient is φ = 10672800.

The previous prime is 40025239. The next prime is 40025261. The reversal of 40025250 is 5252004.

It is an interprime number because it is at equal distance from previous prime (40025239) and next prime (40025261).

It can be written as a sum of positive squares in 4 ways, for example, as 24176889 + 15848361 = 4917^2 + 3981^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6645 + ... + 11144.

Almost surely, 2^40025250 is an apocalyptic number.

40025250 is an abundant number, since it is smaller than the sum of its proper divisors (68209110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40025250 is a wasteful number, since it uses less digits than its factorization.

40025250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17812 (or 17799 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 40025250 is about 6326.5511931857. The cubic root of 40025250 is about 342.0671356865.

Adding to 40025250 its reverse (5252004), we get a palindrome (45277254).

The spelling of 40025250 in words is "forty million, twenty-five thousand, two hundred fifty".